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Resources for the Repair and Maintenance of your Hummer H2

Hummer H2 Models:

Image for car images Hummer 2003 2007 Hummer H2 c size thumb

Hummer H2 Problems

Heating & Air Conditioning -- Verified

One or more heater & AC (HVAC) temperature and/or air delivery mode door actuator may fail, resulting in improper temperature or air delivery. If this occurs, fault code(s) should be stored in the HVAC control module which should assist in diagnoses.

Exhaust & Emissions -- Verified

Illumination of the Check Engine Light can be caused by a loose or worn gas cap.

Engine -- Verified

The fuel pump may fail causing the engine to stall and not restart.

Miscellaneous -- Verified

The CD player may fail due to an internal fault with the radio. Our technicians tell us that in most cases, the radio unit will need to be sent to a specialty repair shop to correct this issue.

Suspension & Steering -- Verified

The steering wheel position sensor may fail, resulting in the service stability message being displayed.

Hummer H2 Recalls (Recent)

Body, Interior & Misc., March 31, 2006

RepairPal Expert Overview:

The tire and loading information label on the driver's side door frame may be inaccurate. A misprinted label could lead to overloading of the vehicle, which could possibly lead to tire failure and a crash. Owners will be provided with corrected labels and installation instructions. At customers' request, a dealer can install the label for them. The recall began March 31, 2006. The GM recall number is 05109.

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Body, Interior & Misc., July 21, 2005

RepairPal Expert Overview:

The second row center seat belt routing may make it difficult to position correctly on smaller passengers. If the seat belt rides up to fit around the abdomen, the risk of internal injury is increased in a crash. Dealers will cut the guide loop, remove a portion of the loop, and the remaining sides should be folded over and secured with a retainer. The recall began July 21, 2005. The GM recall number is 05037.

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Brakes, June 18, 2004

RepairPal Expert Overview:

The hydro-boost housing relief valve bore may be out of specification. The seal may fracture as a result, which may reduce braking assist and slightly increase the steering effort while braking. Under certain conditions, more braking effort will be required to stop the vehicle. Dealers will replace the hydro-boost relief valve. The recall began June 18, 2004. The GM recall number is 04004.

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Brakes, March 23, 2005

RepairPal Expert Overview:

On vehicles equipped with the Bosch hydraulic brake booster, the boost pressure accumulator may crack and break away from the hydro-boost assembly during normal operation. If this were to happen while the hood is open, fragments from the accumulator could injure people standing in the immediate area. The loss of fluid while driving would cause increased steering and braking effort and a crash could occur without warning. Dealers will test the hydro-boost assembly for function of the two-function valve. If the hydro-boost assembly fails the test, it will be replaced free of charge. The recall began March 23, 2005. The GM recall number is 05006.

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Suspension & Steering, October 14, 2005

RepairPal Expert Overview:

Some vehicles have a power steering hose that was not made to specification and may rupture under extreme steering conditions. If this were to happen, power steering assist would be lost and steering effort would increase. On vehicles equipped with hydro-boost brakes, braking effort would also increase. If power steering fluid were to spray on hot engine parts, an engine compartment fire could also occur. Dealers will inspect the power steering hose(s) for the two suspect date codes and replace them if needed. The recall began October 14, 2005. The GM recall number is 05086.

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Hummer H2 Questions and Answers

regatta, 2003 Hummer H2, Gilbert, AZ

Air escapes from the air bags. There are no punctures. Could it be a sensor?

jab228, 2003 Hummer H2, Maryland Heights, MO

Where is the fuel pump located on a 2003 Hummer H2? Side mount or in tank? If in tank is there an access panel from inside the truck?

jesshayes, 2003 Hummer H2, Houston, MO

i was driving down road with my gaslight on and it stopped i put gas in it and it wont even turn over. whats wrong

jab228, 2003 Hummer H2, Maryland Heights, MO

I had the front driver side hub assembly replaced recently and since then my ABS, Brake, and Traction control dash warning light comes on. Prior to this replacement the warning lights never came o...

molara, 2003 Hummer H2, Chicago, IL

air conditioner no longer blows air

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Hummer H2 Reviews

Three years since my last update, and still an AWESOME MACHINE.
the MACHINE IS ALMOST NINE YEARS OLD and kicking ass...

heater on driver side seat come on

We bought this H2 new in the fall of 2005. It now has over 105,000 miles on it and continues to perform extremely well. The only problems we have had is that we've gone through a couple batteries and a minor suspension problem in the rear. This is a great vehicle that has been used for a variety of "hauling" applications and it continues to perform beautifully. The only down side is that the vehicle only gets 11 mpg (whether towing a load or not) and I would not recommend it to a driver 6' tall or greater that wants to be able to stretch their legs out (the seats just don't go back that far).

Purchased in Jan.2010 to be used as everyday driver and 25' boat hauler. Have not regretted trading in a perfectly good 2007 Acura MDX for it. I have added the nominal performance upgrades (exhaust, intake, chip) which certainly boosted power but no increase over stock mpg. 13mpg at best on highway. The 2008 + up model is the way to go for this brand - many improvements over 2007 and earlier. This is one kickass ride!

05 H2 SUT....GREAT DRIVING MACHINE....

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